LACAILLE, A D. Small Implements of Quartz from Ward Hill, Dunrossness, Shetland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 67, p. 327–335, 1933. DOI: 10.9750/PSAS.067.327.335. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7885. Acesso em: 14 jul. 2024.